Electroluminescent mechanism in SrS:HoF3 thin film

被引：5

作者：

Zhao, LJ ^{[1
]}

Zhong, GZ

Zhang, GY

机构：

[1] Nankai Univ, Coll Phys Sci, Photon Res Ctr, Tianjin 300071, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Phys, Changchun 130021, Peoples R China

来源：

ACTA PHYSICA SINICA | 1999年 / 48卷 / 07期

关键词：

D O I：

10.7498/aps.48.1381

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spectral characteristics of SrS:HoF3 thin films are investigated. The aim is to analyse the electroluminescent(EL) mechanism in the SrS:HoF3 thin film. Direct impact excitation mechanism is not the main excitation mechanism according to the relation between the EL spectra and the applied voltage. The ionization of the luminescent center could not happen because there is no trailing edge emission when the thin film is driven by square voltage. Comparing the EL and photoluminescent (PL) spectra, we think the main excitation mechanism is that the hot electrons impact and excite the host and then their energy is transferred to the luminescent centers.

引用

页码：1381 / 1388

页数：8

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